For the first time, a climate change model has drawn direct links between CO2 emissions and increased human mortality. The model, created by Stanford University Professor Mark Jacobson, is considered by many to be the most complex and complete atmospheric model worldwide, taking into account many feedbacks between climate change and air pollution. It estimates that for every one degree Celsius increase in global temperature caused by carbon dioxide, the world will experience upwards of 20,000 additional air pollution-related deaths per year.